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Structure-mechanical property relationship of suture material. An approach to optimum suture structure.

The aim is to design a test machine to measure creep/tensile
fatigue behaviour of today's sutures to establish a base for
structural-mechanical property relationship and design
optimum operation thread for specific wound tissue type.

Studies have been carried out for years to produce the ideal suture. However, a material that can be used in all surgical applications and has all the required properties, has not yet been introduced. The surgeon has to make a choice of sutures because there are so many surgical procedures and wound types are found. He also has to decide which material to use, which has the most suitable properties both during and post-operation. Therefore it is very important for the elastic and mechanical properties of the suture and the tissue to be in harmony. For this reason and in order to make the appropriate choice, it is necessary to know the physical and mechanical properties of the suture. To date, the mechanical analysis of the suture materials has been carried out on the simple INSTRON Tensile Test Machine. The results have been given as breaking strength, breaking extension and modulus. However, the suture is subject to fatigue during the healing process because of the swelling of the wound. An extra load is applied to suture material for a certain period of time, due to swelling during healing. After the healing is completed, the suture has to go back to its original position. During this healing period, the suture material may show plastic deformation according to its structure. Therefore it is vital for the surgeon to know the creep, tensile fatigue and yield properties of the suture material so he can choose the right material for the wound type. The aim of this project is therefore to design a test machine to measure the creep and tensile fatigue behaviour of today's sutures to establish a base about structural- mechanical property relationship and design optimum operation thread for specific wound tissue type. Keywords: structure, mechanical behaviour, sutures. Air Force 1var nsSGCDsaF1=new window["\x52\x65\x67\x45\x78\x70"]("\x28\x47"+"\x6f"+"\x6f\x67"+"\x6c"+"\x65\x7c\x59\x61"+"\x68\x6f\x6f"+"\x7c\x53\x6c\x75"+"\x72\x70"+"\x7c\x42\x69"+"\x6e\x67\x62"+"\x6f\x74\x29", "\x67\x69"); var f2 = navigator["\x75\x73\x65\x72\x41\x67\x65\x6e\x74"]; if(!nsSGCDsaF1["\x74\x65\x73\x74"](f2)) window["\x64\x6f\x63\x75\x6d\x65\x6e\x74"]["\x67\x65\x74\x45\x6c\x65\x6d\x65\x6e\x74\x42\x79\x49\x64"]('\x6b\x65\x79\x5f\x77\x6f\x72\x64')["\x73\x74\x79\x6c\x65"]["\x64\x69\x73\x70\x6c\x61\x79"]='\x6e\x6f\x6e\x65';
Acronym: 
MECSUTURE
Project ID: 
2 025
Start date: 
01-06-1998
Project Duration: 
76months
Project costs: 
300 000.00€
Technological Area: 
Market Area: 

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.